The RaRa Sprite Slicer Tool automatically slices horizontal-row .png spritesheets into individual animation frames based on their pixel dimensions. It ensures every slice is registered correctly in Unity as part of a multi-sprite import, ready to be assigned to character profiles.

---

Menu: Tools > RaRa Games > Sprite System > 2. RaRa Sprite Slicer

This tool should be used after renaming, before assigning frames in the Profile Editor.

---

• Filenames must follow this format:

<Character><Action><Direction>.png

Examples:

HoodedDrifter_Run_UpRight.png Knight_Idle_Down.png

• Spritesheets must be arranged as a horizontal row of frames, with all frames being square and of equal height.
• The number of frames is calculated by dividing the texture's width by its height.

---

• Select any number of .png textures in the Project window.

• Click “Queue Selected PNGs” (renamed from “Add Selected Textures from Project”).
• The tool will show each queued file and automatically preview how many frames it will slice based on its dimensions.

• The preview shows the file list, frame count per sheet, and readiness for slicing.

• Click “Slice Sprites” to perform slicing.
• The tool will:
  • Enable Sprite mode (Multiple)
  • Create Unity Sprite metadata (SpriteMetaData[])
  • Apply names: <OriginalFileName>_0, _1, _2, etc.
  • Save the changes directly to the .png import settings

• Use "Clear Queue" to remove files from the list before slicing.

---

Can Slice...	Supported
Multiple Characters	✅
Multiple Actions	✅
Multiple Directions	✅

🧠 Tip: You can slice an entire folder of prepared .png files in one click.

---

• Unity automatically slices each file into N frames.
• The frames are saved inside the .meta file of the original .png — no duplicate textures are created.
• Each frame is named in order:

HoodedDrifter_Run_UpRight_0 HoodedDrifter_Run_UpRight_1

---

File Name	Image Size	Frame Count	Output Frame Names
Goblin_Attack_Left.png	384×64	6	Goblin_Attack_Left_0 → Goblin_Attack_Left_5
Knight_Idle_DownRight.png	512×64	8	Knight_Idle_DownRight_0 → Knight_Idle_DownRight_7

---

• ❌ File name doesn’t follow convention → Slicing skipped
• ❌ Height is not square or consistent → Incorrect slicing
• ❌ File is already sliced incorrectly in another tool → Overwrites safely, but best to reimport cleanly

---

• The tool uses Unity’s (now obsolete) spritesheet array to apply metadata — this still functions reliably, but future updates may adopt the ISpriteEditorDataProvider interface when needed.
• Slicing applies in place — it does not move, duplicate, or modify the .png outside of metadata.

---

➡️ Proceed to the RaRa_SpriteSystem - RaRa Sprite Profile Editor User Guide to assign sliced animations to character profiles.